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V25 with 64-bit support
[pforth] / csrc / pf_inner.c
CommitLineData
bb6b2dcd 1/* @(#) pf_inner.c 98/03/16 1.7 */\r
2/***************************************************************\r
3** Inner Interpreter for Forth based on 'C'\r
4**\r
5** Author: Phil Burk\r
6** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom\r
7**\r
8** The pForth software code is dedicated to the public domain,\r
9** and any third party may reproduce, distribute and modify\r
10** the pForth software code or any derivative works thereof\r
11** without any compensation or license. The pForth software\r
12** code is provided on an "as is" basis without any warranty\r
13** of any kind, including, without limitation, the implied\r
14** warranties of merchantability and fitness for a particular\r
15** purpose and their equivalents under the laws of any jurisdiction.\r
16**\r
17****************************************************************\r
18**\r
19** 940502 PLB Creation.\r
20** 940505 PLB More macros.\r
21** 940509 PLB Moved all stack stuff into pfCatch.\r
22** 941014 PLB Converted to flat secondary strusture.\r
23** 941027 rdg added casts to ID_SP_FETCH, ID_RP_FETCH, \r
24** and ID_HERE for armcc\r
25** 941130 PLB Made w@ unsigned\r
26**\r
27***************************************************************/\r
28\r
29#include "pf_all.h"\r
acc3c8bd 30\r
31#ifdef WIN32\r
bb6b2dcd 32#include <crtdbg.h>\r
acc3c8bd 33#endif\r
bb6b2dcd 34\r
35#define SYSTEM_LOAD_FILE "system.fth"\r
36\r
37/***************************************************************\r
38** Macros for data stack access.\r
39** TOS is cached in a register in pfCatch.\r
40***************************************************************/\r
41\r
42#define STKPTR (DataStackPtr)\r
43#define M_POP (*(STKPTR++))\r
1cb310e6 44#define M_PUSH(n) {*(--(STKPTR)) = (cell_t) (n);}\r
bb6b2dcd 45#define M_STACK(n) (STKPTR[n])\r
46\r
47#define TOS (TopOfStack)\r
48#define PUSH_TOS M_PUSH(TOS)\r
49#define M_DUP PUSH_TOS;\r
50#define M_DROP { TOS = M_POP; }\r
51\r
52\r
53/***************************************************************\r
54** Macros for Floating Point stack access.\r
55***************************************************************/\r
56#ifdef PF_SUPPORT_FP\r
57#define FP_STKPTR (FloatStackPtr)\r
58#define M_FP_SPZERO (gCurrentTask->td_FloatStackBase)\r
59#define M_FP_POP (*(FP_STKPTR++))\r
60#define M_FP_PUSH(n) {*(--(FP_STKPTR)) = (PF_FLOAT) (n);}\r
61#define M_FP_STACK(n) (FP_STKPTR[n])\r
62\r
63#define FP_TOS (fpTopOfStack)\r
64#define PUSH_FP_TOS M_FP_PUSH(FP_TOS)\r
65#define M_FP_DUP PUSH_FP_TOS;\r
66#define M_FP_DROP { FP_TOS = M_FP_POP; }\r
67#endif\r
68\r
69/***************************************************************\r
70** Macros for return stack access.\r
71***************************************************************/\r
72\r
73#define TORPTR (ReturnStackPtr)\r
74#define M_R_DROP {TORPTR++;}\r
75#define M_R_POP (*(TORPTR++))\r
76#define M_R_PICK(n) (TORPTR[n])\r
1cb310e6 77#define M_R_PUSH(n) {*(--(TORPTR)) = (cell_t) (n);}\r
bb6b2dcd 78\r
79/***************************************************************\r
80** Misc Forth macros\r
81***************************************************************/\r
82 \r
1cb310e6 83#define M_BRANCH { InsPtr = (cell_t *) (((uint8_t *) InsPtr) + READ_CELL_DIC(InsPtr)); }\r
bb6b2dcd 84\r
85/* Cache top of data stack like in JForth. */\r
86#ifdef PF_SUPPORT_FP\r
87#define LOAD_REGISTERS \\r
88 { \\r
89 STKPTR = gCurrentTask->td_StackPtr; \\r
90 TOS = M_POP; \\r
91 FP_STKPTR = gCurrentTask->td_FloatStackPtr; \\r
92 FP_TOS = M_FP_POP; \\r
93 TORPTR = gCurrentTask->td_ReturnPtr; \\r
94 }\r
95 \r
96#define SAVE_REGISTERS \\r
97 { \\r
98 gCurrentTask->td_ReturnPtr = TORPTR; \\r
99 M_PUSH( TOS ); \\r
100 gCurrentTask->td_StackPtr = STKPTR; \\r
101 M_FP_PUSH( FP_TOS ); \\r
102 gCurrentTask->td_FloatStackPtr = FP_STKPTR; \\r
103 }\r
104 \r
105#else\r
106/* Cache top of data stack like in JForth. */\r
107#define LOAD_REGISTERS \\r
108 { \\r
109 STKPTR = gCurrentTask->td_StackPtr; \\r
110 TOS = M_POP; \\r
111 TORPTR = gCurrentTask->td_ReturnPtr; \\r
112 }\r
113 \r
114#define SAVE_REGISTERS \\r
115 { \\r
116 gCurrentTask->td_ReturnPtr = TORPTR; \\r
117 M_PUSH( TOS ); \\r
118 gCurrentTask->td_StackPtr = STKPTR; \\r
119 }\r
120#endif\r
121\r
122#define M_DOTS \\r
123 SAVE_REGISTERS; \\r
124 ffDotS( ); \\r
125 LOAD_REGISTERS;\r
126 \r
1cb310e6 127#define DO_VAR(varname) { PUSH_TOS; TOS = (cell_t) &varname; }\r
bb6b2dcd 128\r
129#ifdef PF_SUPPORT_FP\r
130#define M_THROW(err) \\r
131 { \\r
132 ExceptionReturnCode = (ThrowCode)(err); \\r
133 TORPTR = InitialReturnStack; /* Will cause return to 'C' */ \\r
134 STKPTR = InitialDataStack; \\r
135 FP_STKPTR = InitialFloatStack; \\r
136 }\r
137#else\r
138#define M_THROW(err) \\r
139 { \\r
140 ExceptionReturnCode = (err); \\r
141 TORPTR = InitialReturnStack; /* Will cause return to 'C' */ \\r
142 STKPTR = InitialDataStack; \\r
143 }\r
144#endif\r
145\r
146/***************************************************************\r
147** Other macros\r
148***************************************************************/\r
149\r
150#define BINARY_OP( op ) { TOS = M_POP op TOS; }\r
151#define endcase break\r
152 \r
153#if defined(PF_NO_SHELL) || !defined(PF_SUPPORT_TRACE)\r
154 #define TRACENAMES /* no names */\r
155#else\r
156/* Display name of executing routine. */\r
1cb310e6 157static void TraceNames( ExecToken Token, cell_t Level )\r
bb6b2dcd 158{\r
159 char *DebugName;\r
1cb310e6 160 cell_t i;\r
bb6b2dcd 161 \r
162 if( ffTokenToName( Token, &DebugName ) )\r
163 {\r
1cb310e6 164 cell_t NumSpaces;\r
bb6b2dcd 165 if( gCurrentTask->td_OUT > 0 ) EMIT_CR;\r
166 EMIT( '>' );\r
167 for( i=0; i<Level; i++ )\r
168 {\r
169 MSG( " " );\r
170 }\r
171 TypeName( DebugName );\r
172/* Space out to column N then .S */\r
173 NumSpaces = 30 - gCurrentTask->td_OUT;\r
174 for( i=0; i < NumSpaces; i++ )\r
175 {\r
176 EMIT( ' ' );\r
177 }\r
178 ffDotS();\r
179/* No longer needed? gCurrentTask->td_OUT = 0; */ /* !!! Hack for ffDotS() */\r
180 \r
181 }\r
182 else\r
183 {\r
184 MSG_NUM_H("Couldn't find Name for ", Token);\r
185 }\r
186}\r
187\r
188#define TRACENAMES \\r
189 if( (gVarTraceLevel > Level) ) \\r
190 { SAVE_REGISTERS; TraceNames( Token, Level ); LOAD_REGISTERS; }\r
191#endif /* PF_NO_SHELL */\r
192\r
193/* Use local copy of CODE_BASE for speed. */\r
1cb310e6 194#define LOCAL_CODEREL_TO_ABS( a ) ((cell_t *) (((cell_t) a) + CodeBase))\r
bb6b2dcd 195\r
acc3c8bd 196static const char *pfSelectFileModeCreate( int fam );\r
197static const char *pfSelectFileModeOpen( int fam );\r
198\r
199/**************************************************************/\r
200static const char *pfSelectFileModeCreate( int fam )\r
201{\r
202 const char *famText = NULL;\r
203 switch( fam )\r
204 {\r
205 case (PF_FAM_WRITE_ONLY + PF_FAM_BINARY_FLAG):\r
206 famText = PF_FAM_BIN_CREATE_WO;\r
207 break;\r
208 case (PF_FAM_READ_WRITE + PF_FAM_BINARY_FLAG):\r
209 famText = PF_FAM_BIN_CREATE_RW;\r
210 break;\r
211 case PF_FAM_WRITE_ONLY:\r
212 famText = PF_FAM_CREATE_WO;\r
213 break;\r
214 case PF_FAM_READ_WRITE:\r
215 famText = PF_FAM_CREATE_RW;\r
216 break;\r
217 default:\r
218 famText = "illegal";\r
219 break;\r
220 }\r
221 return famText;\r
222}\r
223\r
bb6b2dcd 224/**************************************************************/\r
acc3c8bd 225static const char *pfSelectFileModeOpen( int fam )\r
bb6b2dcd 226{\r
acc3c8bd 227 const char *famText = NULL;\r
bb6b2dcd 228 switch( fam )\r
229 {\r
230 case (PF_FAM_READ_ONLY + PF_FAM_BINARY_FLAG):\r
231 famText = PF_FAM_BIN_OPEN_RO;\r
232 break;\r
233 case (PF_FAM_WRITE_ONLY + PF_FAM_BINARY_FLAG):\r
234 famText = PF_FAM_BIN_CREATE_WO;\r
235 break;\r
236 case (PF_FAM_READ_WRITE + PF_FAM_BINARY_FLAG):\r
237 famText = PF_FAM_BIN_OPEN_RW;\r
238 break;\r
239 case PF_FAM_READ_ONLY:\r
240 famText = PF_FAM_OPEN_RO;\r
241 break;\r
242 case PF_FAM_WRITE_ONLY:\r
243 famText = PF_FAM_CREATE_WO;\r
244 break;\r
245 case PF_FAM_READ_WRITE:\r
246 default:\r
247 famText = PF_FAM_OPEN_RW;\r
248 break;\r
249 }\r
250 return famText;\r
251}\r
252\r
253/**************************************************************/\r
254int pfCatch( ExecToken XT )\r
255{\r
1cb310e6 256 register cell_t TopOfStack; /* Cache for faster execution. */\r
257 register cell_t *DataStackPtr;\r
258 register cell_t *ReturnStackPtr;\r
259 register cell_t *InsPtr = NULL;\r
260 register cell_t Token;\r
261 cell_t Scratch;\r
bb6b2dcd 262 \r
263#ifdef PF_SUPPORT_FP\r
264 PF_FLOAT fpTopOfStack;\r
265 PF_FLOAT *FloatStackPtr;\r
266 PF_FLOAT fpScratch;\r
267 PF_FLOAT fpTemp;\r
268 PF_FLOAT *InitialFloatStack;\r
269#endif\r
270#ifdef PF_SUPPORT_TRACE\r
1cb310e6 271 cell_t Level = 0;\r
bb6b2dcd 272#endif\r
1cb310e6 273 cell_t *LocalsPtr = NULL;\r
274 cell_t Temp;\r
275 cell_t *InitialReturnStack;\r
276 cell_t *InitialDataStack;\r
277 cell_t FakeSecondary[2];\r
bb6b2dcd 278 char *CharPtr;\r
1cb310e6 279 cell_t *CellPtr;\r
bb6b2dcd 280 FileStream *FileID;\r
1cb310e6 281 uint8_t *CodeBase = CODE_BASE;\r
bb6b2dcd 282 ThrowCode ExceptionReturnCode = 0;\r
283 \r
284/* FIXME\r
285 gExecutionDepth += 1;\r
286 PRT(("pfCatch( 0x%x ), depth = %d\n", XT, gExecutionDepth ));\r
287*/\r
288\r
289/*\r
290** Initialize FakeSecondary this way to avoid having stuff in the data section,\r
291** which is not supported for some embedded system loaders.\r
292*/\r
293 FakeSecondary[0] = 0;\r
294 FakeSecondary[1] = ID_EXIT; /* For EXECUTE */\r
295\r
296/* Move data from task structure to registers for speed. */\r
297 LOAD_REGISTERS;\r
298\r
299/* Save initial stack depths for THROW */\r
300 InitialReturnStack = TORPTR;\r
301 InitialDataStack = STKPTR ;\r
302#ifdef PF_SUPPORT_FP\r
303 InitialFloatStack = FP_STKPTR;\r
304#endif\r
305\r
306 Token = XT;\r
307\r
308 do\r
309 {\r
310DBUG(("pfCatch: Token = 0x%x\n", Token ));\r
311\r
312/* --------------------------------------------------------------- */\r
313/* If secondary, thread down code tree until we hit a primitive. */\r
314 while( !IsTokenPrimitive( Token ) )\r
315 {\r
316#ifdef PF_SUPPORT_TRACE\r
317 if((gVarTraceFlags & TRACE_INNER) )\r
318 {\r
319 MSG("pfCatch: Secondary Token = 0x");\r
320 ffDotHex(Token);\r
321 MSG_NUM_H(", InsPtr = 0x", InsPtr);\r
322 }\r
323 TRACENAMES;\r
324#endif\r
325\r
326/* Save IP on return stack like a JSR. */\r
327 M_R_PUSH( InsPtr );\r
328 \r
329/* Convert execution token to absolute address. */\r
1cb310e6 330 InsPtr = (cell_t *) ( LOCAL_CODEREL_TO_ABS(Token) );\r
bb6b2dcd 331\r
332/* Fetch token at IP. */\r
1cb310e6 333 Token = READ_CELL_DIC(InsPtr++);\r
bb6b2dcd 334 \r
335#ifdef PF_SUPPORT_TRACE\r
336/* Bump level for trace display */\r
337 Level++;\r
338#endif\r
339 }\r
340\r
341 \r
342#ifdef PF_SUPPORT_TRACE\r
343 TRACENAMES;\r
344#endif\r
345 \r
346/* Execute primitive Token. */\r
347 switch( Token )\r
348 {\r
349 \r
350 /* Pop up a level in Forth inner interpreter.\r
351 ** Used to implement semicolon.\r
352 ** Put first in switch because ID_EXIT==0 */\r
353 case ID_EXIT:\r
1cb310e6 354 InsPtr = ( cell_t *) M_R_POP;\r
bb6b2dcd 355#ifdef PF_SUPPORT_TRACE\r
356 Level--;\r
357#endif\r
358 endcase;\r
359 \r
360 case ID_1MINUS: TOS--; endcase;\r
361 \r
362 case ID_1PLUS: TOS++; endcase;\r
363 \r
364#ifndef PF_NO_SHELL\r
365 case ID_2LITERAL:\r
366 ff2Literal( TOS, M_POP );\r
367 M_DROP;\r
368 endcase;\r
369#endif /* !PF_NO_SHELL */\r
370\r
371 case ID_2LITERAL_P:\r
372/* hi part stored first, put on top of stack */\r
373 PUSH_TOS;\r
1cb310e6 374 TOS = READ_CELL_DIC(InsPtr++);\r
375 M_PUSH(READ_CELL_DIC(InsPtr++));\r
bb6b2dcd 376 endcase;\r
377 \r
378 case ID_2MINUS: TOS -= 2; endcase;\r
379 \r
380 case ID_2PLUS: TOS += 2; endcase;\r
381 \r
382 \r
383 case ID_2OVER: /* ( a b c d -- a b c d a b ) */\r
384 PUSH_TOS;\r
385 Scratch = M_STACK(3);\r
386 M_PUSH(Scratch);\r
387 TOS = M_STACK(3);\r
388 endcase;\r
389 \r
390 case ID_2SWAP: /* ( a b c d -- c d a b ) */\r
391 Scratch = M_STACK(0); /* c */\r
392 M_STACK(0) = M_STACK(2); /* a */\r
393 M_STACK(2) = Scratch; /* c */\r
394 Scratch = TOS; /* d */\r
395 TOS = M_STACK(1); /* b */\r
396 M_STACK(1) = Scratch; /* d */\r
397 endcase;\r
398 \r
399 case ID_2DUP: /* ( a b -- a b a b ) */\r
400 PUSH_TOS;\r
401 Scratch = M_STACK(1);\r
402 M_PUSH(Scratch);\r
403 endcase;\r
404 \r
405 case ID_2_R_FETCH:\r
406 PUSH_TOS;\r
407 M_PUSH( (*(TORPTR+1)) );\r
408 TOS = (*(TORPTR));\r
409 endcase;\r
410\r
411 case ID_2_R_FROM:\r
412 PUSH_TOS;\r
413 TOS = M_R_POP;\r
414 M_PUSH( M_R_POP );\r
415 endcase;\r
416\r
417 case ID_2_TO_R:\r
418 M_R_PUSH( M_POP );\r
419 M_R_PUSH( TOS );\r
420 M_DROP;\r
421 endcase;\r
422 \r
423 case ID_ACCEPT_P: /* ( c-addr +n1 -- +n2 ) */\r
424 CharPtr = (char *) M_POP;\r
425 TOS = ioAccept( CharPtr, TOS );\r
426 endcase;\r
427 \r
428#ifndef PF_NO_SHELL\r
429 case ID_ALITERAL:\r
430 ffALiteral( ABS_TO_CODEREL(TOS) );\r
431 M_DROP;\r
432 endcase;\r
433#endif /* !PF_NO_SHELL */\r
434\r
435 case ID_ALITERAL_P:\r
436 PUSH_TOS;\r
1cb310e6 437 TOS = (cell_t) LOCAL_CODEREL_TO_ABS( READ_CELL_DIC(InsPtr++) );\r
bb6b2dcd 438 endcase;\r
439 \r
440/* Allocate some extra and put validation identifier at base */\r
441#define PF_MEMORY_VALIDATOR (0xA81B4D69)\r
442 case ID_ALLOCATE:\r
443 /* Allocate at least one cell's worth because we clobber first cell. */\r
1cb310e6 444 if ( TOS < sizeof(cell_t) )\r
bb6b2dcd 445 {\r
1cb310e6 446 Temp = sizeof(cell_t);\r
bb6b2dcd 447 }\r
448 else\r
449 {\r
450 Temp = TOS;\r
451 }\r
452 /* Allocate extra cells worth because we store validation info. */\r
1cb310e6 453 CellPtr = (cell_t *) pfAllocMem( Temp + sizeof(cell_t) );\r
bb6b2dcd 454 if( CellPtr )\r
455 {\r
456/* This was broken into two steps because different compilers incremented\r
457** CellPtr before or after the XOR step. */\r
1cb310e6 458 Temp = (cell_t)CellPtr ^ PF_MEMORY_VALIDATOR;\r
bb6b2dcd 459 *CellPtr++ = Temp;\r
1cb310e6 460 M_PUSH( (cell_t) CellPtr );\r
bb6b2dcd 461 TOS = 0;\r
462 }\r
463 else\r
464 {\r
465 M_PUSH( 0 );\r
466 TOS = -1; /* FIXME Fix error code. */\r
467 }\r
468 endcase;\r
469\r
470 case ID_AND: BINARY_OP( & ); endcase;\r
471 \r
472 case ID_ARSHIFT: BINARY_OP( >> ); endcase; /* Arithmetic right shift */\r
473 \r
474 case ID_BODY_OFFSET:\r
475 PUSH_TOS;\r
476 TOS = CREATE_BODY_OFFSET;\r
477 endcase;\r
478 \r
479/* Branch is followed by an offset relative to address of offset. */\r
480 case ID_BRANCH:\r
481DBUGX(("Before Branch: IP = 0x%x\n", InsPtr ));\r
482 M_BRANCH;\r
483DBUGX(("After Branch: IP = 0x%x\n", InsPtr ));\r
484 endcase;\r
485\r
486 case ID_BYE:\r
487 M_THROW( THROW_BYE );\r
488 endcase;\r
489\r
490 case ID_BAIL:\r
491 MSG("Emergency exit.\n");\r
492 EXIT(1);\r
493 endcase;\r
494 \r
495 case ID_CATCH:\r
496 Scratch = TOS;\r
497 TOS = M_POP;\r
498 SAVE_REGISTERS;\r
499 Scratch = pfCatch( Scratch );\r
500 LOAD_REGISTERS;\r
501 M_PUSH( TOS );\r
502 TOS = Scratch;\r
503 endcase;\r
504\r
505 case ID_CALL_C:\r
506 SAVE_REGISTERS;\r
1cb310e6 507 Scratch = READ_CELL_DIC(InsPtr++);\r
bb6b2dcd 508 CallUserFunction( Scratch & 0xFFFF,\r
509 (Scratch >> 31) & 1,\r
510 (Scratch >> 24) & 0x7F );\r
511 LOAD_REGISTERS;\r
512 endcase;\r
1cb310e6 513 \r
514 /* Support 32/64 bit operation. */\r
515 case ID_CELL:\r
516 M_PUSH( TOS );\r
517 TOS = sizeof(cell_t);\r
518 endcase;\r
519 \r
520 case ID_CELLS:\r
521 TOS = TOS * sizeof(cell_t);\r
522 endcase;\r
523 \r
524 case ID_CFETCH: TOS = *((uint8_t *) TOS); endcase;\r
bb6b2dcd 525\r
526 case ID_CMOVE: /* ( src dst n -- ) */\r
527 {\r
528 register char *DstPtr = (char *) M_POP; /* dst */\r
529 CharPtr = (char *) M_POP; /* src */\r
1cb310e6 530 for( Scratch=0; (ucell_t) Scratch < (ucell_t) TOS ; Scratch++ )\r
bb6b2dcd 531 {\r
532 *DstPtr++ = *CharPtr++;\r
533 }\r
534 M_DROP;\r
535 }\r
536 endcase;\r
537 \r
538 case ID_CMOVE_UP: /* ( src dst n -- ) */\r
539 {\r
540 register char *DstPtr = ((char *) M_POP) + TOS; /* dst */\r
541 CharPtr = ((char *) M_POP) + TOS;; /* src */\r
1cb310e6 542 for( Scratch=0; (ucell_t) Scratch < (ucell_t) TOS ; Scratch++ )\r
bb6b2dcd 543 {\r
544 *(--DstPtr) = *(--CharPtr);\r
545 }\r
546 M_DROP;\r
547 }\r
548 endcase;\r
549 \r
550#ifndef PF_NO_SHELL\r
551 case ID_COLON:\r
552 SAVE_REGISTERS;\r
553 ffColon( );\r
554 LOAD_REGISTERS;\r
555 endcase;\r
556 case ID_COLON_P: /* ( $name xt -- ) */\r
557 CreateDicEntry( TOS, (char *) M_POP, 0 );\r
558 M_DROP;\r
559 endcase;\r
560#endif /* !PF_NO_SHELL */\r
561\r
562 case ID_COMPARE:\r
563 {\r
564 const char *s1, *s2;\r
1cb310e6 565 cell_t len1;\r
bb6b2dcd 566 s2 = (const char *) M_POP;\r
567 len1 = M_POP;\r
568 s1 = (const char *) M_POP;\r
569 TOS = ffCompare( s1, len1, s2, TOS );\r
570 }\r
571 endcase;\r
572 \r
573/* ( a b -- flag , Comparisons ) */\r
574 case ID_COMP_EQUAL:\r
575 TOS = ( TOS == M_POP ) ? FTRUE : FFALSE ;\r
576 endcase;\r
577 case ID_COMP_NOT_EQUAL:\r
578 TOS = ( TOS != M_POP ) ? FTRUE : FFALSE ;\r
579 endcase;\r
580 case ID_COMP_GREATERTHAN:\r
581 TOS = ( M_POP > TOS ) ? FTRUE : FFALSE ;\r
582 endcase;\r
583 case ID_COMP_LESSTHAN:\r
584 TOS = ( M_POP < TOS ) ? FTRUE : FFALSE ;\r
585 endcase;\r
586 case ID_COMP_U_GREATERTHAN:\r
1cb310e6 587 TOS = ( ((ucell_t)M_POP) > ((ucell_t)TOS) ) ? FTRUE : FFALSE ;\r
bb6b2dcd 588 endcase;\r
589 case ID_COMP_U_LESSTHAN:\r
1cb310e6 590 TOS = ( ((ucell_t)M_POP) < ((ucell_t)TOS) ) ? FTRUE : FFALSE ;\r
bb6b2dcd 591 endcase;\r
592 case ID_COMP_ZERO_EQUAL:\r
593 TOS = ( TOS == 0 ) ? FTRUE : FFALSE ;\r
594 endcase;\r
595 case ID_COMP_ZERO_NOT_EQUAL:\r
596 TOS = ( TOS != 0 ) ? FTRUE : FALSE ;\r
597 endcase;\r
598 case ID_COMP_ZERO_GREATERTHAN:\r
599 TOS = ( TOS > 0 ) ? FTRUE : FFALSE ;\r
600 endcase;\r
601 case ID_COMP_ZERO_LESSTHAN:\r
602 TOS = ( TOS < 0 ) ? FTRUE : FFALSE ;\r
603 endcase;\r
604 \r
605 case ID_CR:\r
606 EMIT_CR;\r
607 endcase;\r
608 \r
609#ifndef PF_NO_SHELL\r
610 case ID_CREATE:\r
611 SAVE_REGISTERS;\r
612 ffCreate();\r
613 LOAD_REGISTERS;\r
614 endcase;\r
615#endif /* !PF_NO_SHELL */\r
616\r
617 case ID_CREATE_P:\r
618 PUSH_TOS;\r
619/* Put address of body on stack. Insptr points after code start. */\r
1cb310e6 620 TOS = (cell_t) ((char *)InsPtr - sizeof(cell_t) + CREATE_BODY_OFFSET );\r
bb6b2dcd 621 endcase;\r
622 \r
623 case ID_CSTORE: /* ( c caddr -- ) */\r
1cb310e6 624 *((uint8_t *) TOS) = (uint8_t) M_POP;\r
bb6b2dcd 625 M_DROP;\r
626 endcase;\r
627\r
628/* Double precision add. */\r
629 case ID_D_PLUS: /* D+ ( al ah bl bh -- sl sh ) */ \r
630 {\r
1cb310e6 631 register ucell_t ah,al,bl,sh,sl;\r
bb6b2dcd 632#define bh TOS\r
633 bl = M_POP;\r
634 ah = M_POP;\r
635 al = M_POP;\r
636 sh = 0;\r
637 sl = al + bl;\r
638 if( sl < bl ) sh = 1; /* Carry */\r
639 sh += ah + bh;\r
640 M_PUSH( sl );\r
641 TOS = sh;\r
642#undef bh\r
643 }\r
644 endcase;\r
645 \r
646/* Double precision subtract. */\r
647 case ID_D_MINUS: /* D- ( al ah bl bh -- sl sh ) */ \r
648 {\r
1cb310e6 649 register ucell_t ah,al,bl,sh,sl;\r
bb6b2dcd 650#define bh TOS\r
651 bl = M_POP;\r
652 ah = M_POP;\r
653 al = M_POP;\r
654 sh = 0;\r
655 sl = al - bl;\r
656 if( al < bl ) sh = 1; /* Borrow */\r
657 sh = ah - bh - sh;\r
658 M_PUSH( sl );\r
659 TOS = sh;\r
660#undef bh\r
661 }\r
662 endcase;\r
663 \r
664/* Perform 32*32 bit multiply for 64 bit result, by factoring into 16 bit quantities. */\r
665/* Using an improved algorithm suggested by Steve Green. */\r
1cb310e6 666 case ID_D_UMTIMES: /* UM* ( a b -- pl ph ) */ \r
bb6b2dcd 667 {\r
1cb310e6 668 ucell_t ahi, alo, bhi, blo, temp;\r
669 ucell_t pl, ph;\r
bb6b2dcd 670/* Get values from stack. */\r
671 ahi = M_POP;\r
672 bhi = TOS;\r
673/* Break into hi and lo 16 bit parts. */\r
674 alo = ahi & 0xFFFF;\r
675 ahi = ahi>>16;\r
676 blo = bhi & 0xFFFF;\r
677 bhi = bhi>>16;\r
678 ph = 0;\r
679/* ahi * bhi */\r
680 pl = ahi * bhi;\r
681 ph = pl >> 16; /* shift 64 bit value by 16 */\r
682 pl = pl << 16;\r
683/* ahi * blo */\r
684 temp = ahi * blo;\r
685 pl += temp;\r
686 if( pl < temp ) ph += 1; /* Carry */\r
687/* alo * bhi */\r
688 temp = alo * bhi;\r
689 pl += temp;\r
690 if( pl < temp ) ph += 1; /* Carry */\r
691 ph = (ph << 16) | (pl >> 16); /* shift 64 bit value by 16 */\r
692 pl = pl << 16;\r
693/* alo * blo */\r
694 temp = alo * blo;\r
695 pl += temp;\r
696 if( pl < temp ) ph += 1; /* Carry */\r
697\r
698 M_PUSH( pl );\r
699 TOS = ph;\r
700 }\r
701 endcase;\r
702 \r
703/* Perform 32*32 bit multiply for 64 bit result, using shift and add. */\r
704 case ID_D_MTIMES: /* M* ( a b -- pl ph ) */ \r
705 {\r
1cb310e6 706 cell_t a,b;\r
707 ucell_t ap,bp, ahi, alo, bhi, blo, temp;\r
708 ucell_t pl, ph;\r
bb6b2dcd 709/* Get values from stack. */\r
710 a = M_POP;\r
711 b = TOS;\r
712 ap = (a < 0) ? -a : a ; /* Positive A */\r
713 bp = (b < 0) ? -b : b ; /* Positive B */\r
714/* Break into hi and lo 16 bit parts. */\r
715 alo = ap & 0xFFFF;\r
716 ahi = ap>>16;\r
717 blo = bp & 0xFFFF;\r
718 bhi = bp>>16;\r
719 ph = 0;\r
720/* ahi * bhi */\r
721 pl = ahi * bhi;\r
722 ph = pl >> 16; /* shift 64 bit value by 16 */\r
723 pl = pl << 16;\r
724/* ahi * blo */\r
725 temp = ahi * blo;\r
726 pl += temp;\r
727 if( pl < temp ) ph += 1; /* Carry */\r
728/* alo * bhi */\r
729 temp = alo * bhi;\r
730 pl += temp;\r
731 if( pl < temp ) ph += 1; /* Carry */\r
732 ph = (ph << 16) | (pl >> 16); /* shift 64 bit value by 16 */\r
733 pl = pl << 16;\r
734/* alo * blo */\r
735 temp = alo * blo;\r
736 pl += temp;\r
737 if( pl < temp ) ph += 1; /* Carry */\r
738\r
739/* Negate product if one operand negative. */\r
740 if( ((a ^ b) & 0x80000000) )\r
741 {\r
742 pl = 0-pl;\r
743 if( pl & 0x80000000 )\r
744 {\r
745 ph = -1 - ph; /* Borrow */\r
746 }\r
747 else\r
748 {\r
749 ph = 0 - ph;\r
750 }\r
751 }\r
752\r
753 M_PUSH( pl );\r
754 TOS = ph;\r
755 }\r
756 endcase;\r
757\r
758#define DULT(du1l,du1h,du2l,du2h) ( (du2h<du1h) ? FALSE : ( (du2h==du1h) ? (du1l<du2l) : TRUE) )\r
759/* Perform 64/32 bit divide for 32 bit result, using shift and subtract. */\r
760 case ID_D_UMSMOD: /* UM/MOD ( al ah bdiv -- rem q ) */ \r
761 {\r
1cb310e6 762 ucell_t ah,al, q,di, bl,bh, sl,sh;\r
bb6b2dcd 763 ah = M_POP;\r
764 al = M_POP;\r
765 bh = TOS;\r
766 bl = 0;\r
767 q = 0;\r
768 for( di=0; di<32; di++ )\r
769 {\r
770 if( !DULT(al,ah,bl,bh) )\r
771 {\r
772 sh = 0;\r
773 sl = al - bl;\r
774 if( al < bl ) sh = 1; /* Borrow */\r
775 sh = ah - bh - sh;\r
776 ah = sh;\r
777 al = sl;\r
778 q |= 1;\r
779 }\r
780 q = q << 1;\r
781 bl = (bl >> 1) | (bh << 31);\r
782 bh = bh >> 1;\r
783 }\r
784 if( !DULT(al,ah,bl,bh) )\r
785 {\r
786 \r
787 al = al - bl;\r
788 q |= 1;\r
789 }\r
790 M_PUSH( al ); /* rem */\r
791 TOS = q;\r
792 }\r
793 endcase;\r
794\r
795/* Perform 64/32 bit divide for 64 bit result, using shift and subtract. */\r
796 case ID_D_MUSMOD: /* MU/MOD ( al am bdiv -- rem ql qh ) */ \r
797 {\r
1cb310e6 798 register ucell_t ah,am,al,ql,qh,di;\r
799#define bdiv ((ucell_t)TOS)\r
bb6b2dcd 800 ah = 0;\r
801 am = M_POP;\r
802 al = M_POP;\r
803 qh = ql = 0;\r
1cb310e6 804#define NBITS (sizeof(cell_t)*8)\r
805 for( di=0; di<2*NBITS; di++ )\r
bb6b2dcd 806 {\r
807 if( bdiv <= ah )\r
808 {\r
809 ah = ah - bdiv;\r
810 ql |= 1;\r
811 }\r
1cb310e6 812 qh = (qh << 1) | (ql >> (NBITS-1));\r
bb6b2dcd 813 ql = ql << 1;\r
1cb310e6 814 ah = (ah << 1) | (am >> (NBITS-1));\r
815 am = (am << 1) | (al >> (NBITS-1));\r
bb6b2dcd 816 al = al << 1;\r
817DBUG(("XX ah,m,l = 0x%8x,%8x,%8x - qh,l = 0x%8x,%8x\n", ah,am,al, qh,ql ));\r
818 }\r
819 if( bdiv <= ah )\r
820 {\r
821 ah = ah - bdiv;\r
822 ql |= 1;\r
823 }\r
824 M_PUSH( ah ); /* rem */\r
825 M_PUSH( ql );\r
826 TOS = qh;\r
827#undef bdiv\r
828 }\r
829 endcase;\r
830\r
831#ifndef PF_NO_SHELL\r
832 case ID_DEFER:\r
833 ffDefer( );\r
834 endcase;\r
835#endif /* !PF_NO_SHELL */\r
836\r
837 case ID_DEFER_P:\r
838 endcase;\r
839\r
840 case ID_DEPTH:\r
841 PUSH_TOS;\r
842 TOS = gCurrentTask->td_StackBase - STKPTR;\r
843 endcase;\r
844 \r
845 case ID_DIVIDE: BINARY_OP( / ); endcase;\r
846 \r
847 case ID_DOT:\r
848 ffDot( TOS );\r
849 M_DROP;\r
850 endcase;\r
851 \r
852 case ID_DOTS:\r
853 M_DOTS;\r
854 endcase;\r
855 \r
856 case ID_DROP: M_DROP; endcase;\r
857 \r
858 case ID_DUMP:\r
859 Scratch = M_POP;\r
860 DumpMemory( (char *) Scratch, TOS );\r
861 M_DROP;\r
862 endcase;\r
863\r
864 case ID_DUP: M_DUP; endcase;\r
865 \r
866 case ID_DO_P: /* ( limit start -- ) ( R: -- start limit ) */\r
867 M_R_PUSH( TOS );\r
868 M_R_PUSH( M_POP );\r
869 M_DROP;\r
870 endcase;\r
871 \r
872 case ID_EOL: /* ( -- end_of_line_char ) */\r
873 PUSH_TOS;\r
1cb310e6 874 TOS = (cell_t) '\n';\r
bb6b2dcd 875 endcase;\r
876 \r
877 case ID_ERRORQ_P: /* ( flag num -- , quit if flag true ) */\r
878 Scratch = TOS;\r
879 M_DROP;\r
880 if(TOS)\r
881 {\r
882 M_THROW(Scratch);\r
883 }\r
884 else\r
885 {\r
886 M_DROP;\r
887 }\r
888 endcase;\r
889 \r
890 case ID_EMIT_P:\r
891 EMIT( (char) TOS );\r
892 M_DROP;\r
893 endcase;\r
894 \r
895 case ID_EXECUTE:\r
896/* Save IP on return stack like a JSR. */\r
897 M_R_PUSH( InsPtr );\r
898#ifdef PF_SUPPORT_TRACE\r
899/* Bump level for trace. */\r
900 Level++;\r
901#endif\r
902 if( IsTokenPrimitive( TOS ) )\r
903 {\r
1cb310e6 904 WRITE_CELL_DIC( (cell_t *) &FakeSecondary[0], TOS); /* Build a fake secondary and execute it. */\r
bb6b2dcd 905 InsPtr = &FakeSecondary[0];\r
906 }\r
907 else\r
908 {\r
1cb310e6 909 InsPtr = (cell_t *) LOCAL_CODEREL_TO_ABS(TOS);\r
bb6b2dcd 910 }\r
911 M_DROP;\r
912 endcase;\r
913 \r
914 case ID_FETCH:\r
915#if (defined(PF_BIG_ENDIAN_DIC) || defined(PF_LITTLE_ENDIAN_DIC))\r
916 if( IN_DICS( TOS ) )\r
917 {\r
1cb310e6 918 TOS = (cell_t) READ_CELL_DIC((cell_t *)TOS);\r
bb6b2dcd 919 }\r
920 else\r
921 {\r
1cb310e6 922 TOS = *((cell_t *)TOS);\r
bb6b2dcd 923 }\r
924#else\r
1cb310e6 925 TOS = *((cell_t *)TOS);\r
bb6b2dcd 926#endif\r
927 endcase;\r
928 \r
929 case ID_FILE_CREATE: /* ( c-addr u fam -- fid ior ) */\r
930/* Build NUL terminated name string. */\r
931 Scratch = M_POP; /* u */\r
932 Temp = M_POP; /* caddr */\r
933 if( Scratch < TIB_SIZE-2 )\r
934 {\r
acc3c8bd 935 const char *famText = pfSelectFileModeCreate( TOS );\r
1cb310e6 936 pfCopyMemory( gScratch, (char *) Temp, (ucell_t) Scratch );\r
bb6b2dcd 937 gScratch[Scratch] = '\0';\r
987bbb7d 938 DBUG(("Create file = %s with famTxt %s\n", gScratch, famText ));\r
bb6b2dcd 939 FileID = sdOpenFile( gScratch, famText );\r
940 TOS = ( FileID == NULL ) ? -1 : 0 ;\r
1cb310e6 941 M_PUSH( (cell_t) FileID );\r
bb6b2dcd 942 }\r
943 else\r
944 {\r
945 ERR("Filename too large for name buffer.\n");\r
946 M_PUSH( 0 );\r
947 TOS = -2;\r
948 }\r
949 endcase;\r
950\r
951 case ID_FILE_OPEN: /* ( c-addr u fam -- fid ior ) */\r
952/* Build NUL terminated name string. */\r
953 Scratch = M_POP; /* u */\r
954 Temp = M_POP; /* caddr */\r
955 if( Scratch < TIB_SIZE-2 )\r
956 {\r
acc3c8bd 957 const char *famText = pfSelectFileModeOpen( TOS );\r
1cb310e6 958 pfCopyMemory( gScratch, (char *) Temp, (ucell_t) Scratch );\r
bb6b2dcd 959 gScratch[Scratch] = '\0';\r
960 DBUG(("Open file = %s\n", gScratch ));\r
961 FileID = sdOpenFile( gScratch, famText );\r
962\r
963 TOS = ( FileID == NULL ) ? -1 : 0 ;\r
1cb310e6 964 M_PUSH( (cell_t) FileID );\r
bb6b2dcd 965 }\r
966 else\r
967 {\r
968 ERR("Filename too large for name buffer.\n");\r
969 M_PUSH( 0 );\r
970 TOS = -2;\r
971 }\r
972 endcase;\r
973 \r
974 case ID_FILE_CLOSE: /* ( fid -- ior ) */\r
975 TOS = sdCloseFile( (FileStream *) TOS );\r
976 endcase;\r
977 \r
978 case ID_FILE_READ: /* ( addr len fid -- u2 ior ) */\r
979 FileID = (FileStream *) TOS;\r
980 Scratch = M_POP;\r
981 CharPtr = (char *) M_POP;\r
982 Temp = sdReadFile( CharPtr, 1, Scratch, FileID );\r
983 M_PUSH(Temp);\r
984 TOS = 0;\r
985 endcase;\r
986 \r
987 case ID_FILE_SIZE: /* ( fid -- ud ior ) */\r
988/* Determine file size by seeking to end and returning position. */\r
989 FileID = (FileStream *) TOS;\r
990 Scratch = sdTellFile( FileID );\r
991 sdSeekFile( FileID, 0, PF_SEEK_END );\r
992 M_PUSH( sdTellFile( FileID ));\r
993 sdSeekFile( FileID, Scratch, PF_SEEK_SET );\r
994 TOS = (Scratch < 0) ? -4 : 0 ; /* !!! err num */\r
995 endcase;\r
996\r
997 case ID_FILE_WRITE: /* ( addr len fid -- ior ) */\r
998 FileID = (FileStream *) TOS;\r
999 Scratch = M_POP;\r
1000 CharPtr = (char *) M_POP;\r
1001 Temp = sdWriteFile( CharPtr, 1, Scratch, FileID );\r
1002 TOS = (Temp != Scratch) ? -3 : 0;\r
1003 endcase;\r
1004\r
1005 case ID_FILE_REPOSITION: /* ( pos fid -- ior ) */\r
1006 FileID = (FileStream *) TOS;\r
1007 Scratch = M_POP;\r
1008 TOS = sdSeekFile( FileID, Scratch, PF_SEEK_SET );\r
1009 endcase;\r
1010\r
1011 case ID_FILE_POSITION: /* ( pos fid -- ior ) */\r
1012 M_PUSH( sdTellFile( (FileStream *) TOS ));\r
1013 TOS = 0;\r
1014 endcase;\r
1015\r
1016 case ID_FILE_RO: /* ( -- fam ) */\r
1017 PUSH_TOS;\r
1018 TOS = PF_FAM_READ_ONLY;\r
1019 endcase;\r
1020 \r
1021 case ID_FILE_RW: /* ( -- fam ) */\r
1022 PUSH_TOS;\r
1023 TOS = PF_FAM_READ_WRITE;\r
1024 endcase;\r
1025\r
1026 case ID_FILE_WO: /* ( -- fam ) */\r
1027 PUSH_TOS;\r
1028 TOS = PF_FAM_WRITE_ONLY;\r
1029 endcase;\r
1030\r
1031 case ID_FILE_BIN: /* ( -- fam ) */\r
1032 TOS = TOS | PF_FAM_BINARY_FLAG;\r
1033 endcase;\r
1034 \r
1035 case ID_FILL: /* ( caddr num charval -- ) */\r
1036 {\r
1037 register char *DstPtr;\r
1038 Temp = M_POP; /* num */\r
1039 DstPtr = (char *) M_POP; /* dst */\r
1cb310e6 1040 for( Scratch=0; (ucell_t) Scratch < (ucell_t) Temp ; Scratch++ )\r
bb6b2dcd 1041 {\r
1042 *DstPtr++ = (char) TOS;\r
1043 }\r
1044 M_DROP;\r
1045 }\r
1046 endcase;\r
1047 \r
1048#ifndef PF_NO_SHELL\r
1049 case ID_FIND: /* ( $addr -- $addr 0 | xt +-1 ) */\r
1050 TOS = ffFind( (char *) TOS, (ExecToken *) &Temp );\r
1051 M_PUSH( Temp );\r
1052 endcase;\r
1053 \r
1054 case ID_FINDNFA:\r
1055 TOS = ffFindNFA( (const ForthString *) TOS, (const ForthString **) &Temp );\r
1cb310e6 1056 M_PUSH( (cell_t) Temp );\r
bb6b2dcd 1057 endcase;\r
1058#endif /* !PF_NO_SHELL */\r
1059\r
1060 case ID_FLUSHEMIT:\r
1061 sdTerminalFlush();\r
1062 endcase;\r
1063 \r
1064/* Validate memory before freeing. Clobber validator and first word. */\r
1065 case ID_FREE: /* ( addr -- result ) */\r
1066 if( TOS == 0 )\r
1067 {\r
1068 ERR("FREE passed NULL!\n");\r
1069 TOS = -2; /* FIXME error code */\r
1070 }\r
1071 else\r
1072 {\r
1cb310e6 1073 CellPtr = (cell_t *) TOS;\r
bb6b2dcd 1074 CellPtr--;\r
1cb310e6 1075 if( ((ucell_t)*CellPtr) != ((ucell_t)CellPtr ^ PF_MEMORY_VALIDATOR))\r
bb6b2dcd 1076 {\r
1077 TOS = -2; /* FIXME error code */\r
1078 }\r
1079 else\r
1080 {\r
1081 CellPtr[0] = 0xDeadBeef;\r
1082 pfFreeMem((char *)CellPtr);\r
1083 TOS = 0;\r
1084 }\r
1085 }\r
1086 endcase;\r
1087 \r
1088#include "pfinnrfp.h"\r
1089\r
1090 case ID_HERE:\r
1091 PUSH_TOS;\r
1cb310e6 1092 TOS = (cell_t)CODE_HERE;\r
bb6b2dcd 1093 endcase;\r
1094 \r
1095 case ID_NUMBERQ_P: /* ( addr -- 0 | n 1 ) */\r
1096/* Convert using number converter in 'C'.\r
1097** Only supports single precision for bootstrap.\r
1098*/\r
1cb310e6 1099 TOS = (cell_t) ffNumberQ( (char *) TOS, &Temp );\r
bb6b2dcd 1100 if( TOS == NUM_TYPE_SINGLE)\r
1101 {\r
1102 M_PUSH( Temp ); /* Push single number */\r
1103 }\r
1104 endcase;\r
1105 \r
1106 case ID_I: /* ( -- i , DO LOOP index ) */\r
1107 PUSH_TOS;\r
1108 TOS = M_R_PICK(1);\r
1109 endcase;\r
1110\r
1111#ifndef PF_NO_SHELL\r
1112 case ID_INCLUDE_FILE:\r
1113 FileID = (FileStream *) TOS;\r
1114 M_DROP; /* Drop now so that INCLUDE has a clean stack. */\r
1115 SAVE_REGISTERS;\r
1116 Scratch = ffIncludeFile( FileID );\r
1117 LOAD_REGISTERS;\r
1118 if( Scratch ) M_THROW(Scratch)\r
1119 endcase;\r
1120#endif /* !PF_NO_SHELL */\r
1121 \r
1122#ifndef PF_NO_SHELL\r
1123 case ID_INTERPRET:\r
1124 SAVE_REGISTERS;\r
1125 Scratch = ffInterpret();\r
1126 LOAD_REGISTERS;\r
1127 if( Scratch ) M_THROW(Scratch)\r
1128 endcase;\r
1129#endif /* !PF_NO_SHELL */\r
1130\r
1131 case ID_J: /* ( -- j , second DO LOOP index ) */\r
1132 PUSH_TOS;\r
1133 TOS = M_R_PICK(3);\r
1134 endcase;\r
1135\r
1136 case ID_KEY:\r
1137 PUSH_TOS;\r
1138 TOS = ioKey();\r
1139 endcase;\r
1140 \r
1141#ifndef PF_NO_SHELL\r
1142 case ID_LITERAL:\r
1143 ffLiteral( TOS );\r
1144 M_DROP;\r
1145 endcase;\r
1146#endif /* !PF_NO_SHELL */\r
1147\r
1148 case ID_LITERAL_P:\r
1149 DBUG(("ID_LITERAL_P: InsPtr = 0x%x, *InsPtr = 0x%x\n", InsPtr, *InsPtr ));\r
1150 PUSH_TOS;\r
1cb310e6 1151 TOS = READ_CELL_DIC(InsPtr++);\r
bb6b2dcd 1152 endcase;\r
1153 \r
1154#ifndef PF_NO_SHELL\r
1155 case ID_LOCAL_COMPILER: DO_VAR(gLocalCompiler_XT); endcase;\r
1156#endif /* !PF_NO_SHELL */\r
1157\r
1158 case ID_LOCAL_FETCH: /* ( i <local> -- n , fetch from local ) */\r
1159 TOS = *(LocalsPtr - TOS);\r
1160 endcase;\r
1161\r
1162#define LOCAL_FETCH_N(num) \\r
1163 case ID_LOCAL_FETCH_##num: /* ( <local> -- n , fetch from local ) */ \\r
1164 PUSH_TOS; \\r
1165 TOS = *(LocalsPtr -(num)); \\r
1166 endcase;\r
1167\r
1168 LOCAL_FETCH_N(1);\r
1169 LOCAL_FETCH_N(2);\r
1170 LOCAL_FETCH_N(3);\r
1171 LOCAL_FETCH_N(4);\r
1172 LOCAL_FETCH_N(5);\r
1173 LOCAL_FETCH_N(6);\r
1174 LOCAL_FETCH_N(7);\r
1175 LOCAL_FETCH_N(8);\r
1176 \r
1177 case ID_LOCAL_STORE: /* ( n i <local> -- , store n in local ) */\r
1178 *(LocalsPtr - TOS) = M_POP;\r
1179 M_DROP;\r
1180 endcase;\r
1181\r
1182#define LOCAL_STORE_N(num) \\r
1183 case ID_LOCAL_STORE_##num: /* ( n <local> -- , store n in local ) */ \\r
1184 *(LocalsPtr - (num)) = TOS; \\r
1185 M_DROP; \\r
1186 endcase;\r
1187\r
1188 LOCAL_STORE_N(1);\r
1189 LOCAL_STORE_N(2);\r
1190 LOCAL_STORE_N(3);\r
1191 LOCAL_STORE_N(4);\r
1192 LOCAL_STORE_N(5);\r
1193 LOCAL_STORE_N(6);\r
1194 LOCAL_STORE_N(7);\r
1195 LOCAL_STORE_N(8);\r
1196 \r
1197 case ID_LOCAL_PLUSSTORE: /* ( n i <local> -- , add n to local ) */\r
1198 *(LocalsPtr - TOS) += M_POP;\r
1199 M_DROP;\r
1200 endcase;\r
1201 \r
1202 case ID_LOCAL_ENTRY: /* ( x0 x1 ... xn n -- ) */\r
1203 /* create local stack frame */\r
1204 {\r
1cb310e6 1205 cell_t i = TOS;\r
1206 cell_t *lp;\r
bb6b2dcd 1207 DBUG(("LocalEntry: n = %d\n", TOS));\r
1208 /* End of locals. Create stack frame */\r
1209 DBUG(("LocalEntry: before RP@ = 0x%x, LP = 0x%x\n",\r
1210 TORPTR, LocalsPtr));\r
1211 M_R_PUSH(LocalsPtr);\r
1212 LocalsPtr = TORPTR;\r
1213 TORPTR -= TOS;\r
1214 DBUG(("LocalEntry: after RP@ = 0x%x, LP = 0x%x\n",\r
1215 TORPTR, LocalsPtr));\r
1216 lp = TORPTR;\r
1217 while(i-- > 0)\r
1218 {\r
1219 *lp++ = M_POP; /* Load local vars from stack */\r
1220 }\r
1221 M_DROP;\r
1222 }\r
1223 endcase;\r
1224\r
1225 case ID_LOCAL_EXIT: /* cleanup up local stack frame */\r
1226 DBUG(("LocalExit: before RP@ = 0x%x, LP = 0x%x\n",\r
1227 TORPTR, LocalsPtr));\r
1228 TORPTR = LocalsPtr;\r
1cb310e6 1229 LocalsPtr = (cell_t *) M_R_POP;\r
bb6b2dcd 1230 DBUG(("LocalExit: after RP@ = 0x%x, LP = 0x%x\n",\r
1231 TORPTR, LocalsPtr));\r
1232 endcase;\r
1233 \r
1234#ifndef PF_NO_SHELL\r
1235 case ID_LOADSYS:\r
1236 MSG("Load "); MSG(SYSTEM_LOAD_FILE); EMIT_CR;\r
1237 FileID = sdOpenFile(SYSTEM_LOAD_FILE, "r");\r
1238 if( FileID )\r
1239 {\r
1240 SAVE_REGISTERS;\r
1241 Scratch = ffIncludeFile( FileID );\r
1242 LOAD_REGISTERS;\r
1243 sdCloseFile( FileID );\r
1244 if( Scratch ) M_THROW(Scratch);\r
1245 }\r
1246 else\r
1247 {\r
1248 ERR(SYSTEM_LOAD_FILE); ERR(" could not be opened!\n");\r
1249 }\r
1250 endcase;\r
1251#endif /* !PF_NO_SHELL */\r
1252\r
1253 case ID_LEAVE_P: /* ( R: index limit -- ) */\r
1254 M_R_DROP;\r
1255 M_R_DROP;\r
1256 M_BRANCH;\r
1257 endcase;\r
1258\r
1259 case ID_LOOP_P: /* ( R: index limit -- | index limit ) */\r
1260 Temp = M_R_POP; /* limit */\r
1261 Scratch = M_R_POP + 1; /* index */\r
1262 if( Scratch == Temp )\r
1263 {\r
1264 InsPtr++; /* skip branch offset, exit loop */\r
1265 }\r
1266 else\r
1267 {\r
1268/* Push index and limit back to R */\r
1269 M_R_PUSH( Scratch );\r
1270 M_R_PUSH( Temp );\r
1271/* Branch back to just after (DO) */\r
1272 M_BRANCH;\r
1273 }\r
1274 endcase;\r
1275 \r
1276 case ID_LSHIFT: BINARY_OP( << ); endcase;\r
1277 \r
1278 case ID_MAX:\r
1279 Scratch = M_POP;\r
1280 TOS = ( TOS > Scratch ) ? TOS : Scratch ;\r
1281 endcase;\r
1282 \r
1283 case ID_MIN:\r
1284 Scratch = M_POP;\r
1285 TOS = ( TOS < Scratch ) ? TOS : Scratch ;\r
1286 endcase;\r
1287 \r
1288 case ID_MINUS: BINARY_OP( - ); endcase;\r
1289 \r
1290#ifndef PF_NO_SHELL\r
1291 case ID_NAME_TO_TOKEN:\r
1cb310e6 1292 TOS = (cell_t) NameToToken((ForthString *)TOS);\r
bb6b2dcd 1293 endcase;\r
1294 \r
1295 case ID_NAME_TO_PREVIOUS:\r
1cb310e6 1296 TOS = (cell_t) NameToPrevious((ForthString *)TOS);\r
bb6b2dcd 1297 endcase;\r
1298#endif\r
1299 \r
1300 case ID_NOOP:\r
1301 endcase;\r
1302 \r
1303 case ID_OR: BINARY_OP( | ); endcase;\r
1304 \r
1305 case ID_OVER:\r
1306 PUSH_TOS;\r
1307 TOS = M_STACK(1);\r
1308 endcase;\r
1309 \r
1310 case ID_PICK: /* ( ... n -- sp(n) ) */\r
1311 TOS = M_STACK(TOS);\r
1312 endcase;\r
1313\r
1314 case ID_PLUS: BINARY_OP( + ); endcase;\r
1315 \r
1316 case ID_PLUS_STORE: /* ( n addr -- , add n to *addr ) */\r
1317#if (defined(PF_BIG_ENDIAN_DIC) || defined(PF_LITTLE_ENDIAN_DIC))\r
1318 if( IN_DICS( TOS ) )\r
1319 {\r
1cb310e6 1320 Scratch = READ_CELL_DIC((cell_t *)TOS);\r
bb6b2dcd 1321 Scratch += M_POP;\r
1cb310e6 1322 WRITE_CELL_DIC((cell_t *)TOS,Scratch);\r
bb6b2dcd 1323 }\r
1324 else\r
1325 {\r
1cb310e6 1326 *((cell_t *)TOS) += M_POP;\r
bb6b2dcd 1327 }\r
1328#else\r
1cb310e6 1329 *((cell_t *)TOS) += M_POP;\r
bb6b2dcd 1330#endif\r
1331 M_DROP;\r
1332 endcase;\r
1333\r
1334 case ID_PLUSLOOP_P: /* ( delta -- ) ( R: index limit -- | index limit ) */\r
1335 {\r
1cb310e6 1336 ucell_t OldIndex, NewIndex, Limit;\r
bb6b2dcd 1337\r
1338 Limit = M_R_POP;\r
1339 OldIndex = M_R_POP;\r
1340 NewIndex = OldIndex + TOS; /* add TOS to index, not 1 */\r
1341/* Do indices cross boundary between LIMIT-1 and LIMIT ? */\r
1342 if( ( (OldIndex - Limit) & ((Limit-1) - NewIndex) & 0x80000000 ) ||\r
1343 ( (NewIndex - Limit) & ((Limit-1) - OldIndex) & 0x80000000 ) )\r
1344 {\r
1345 InsPtr++; /* skip branch offset, exit loop */\r
1346 }\r
1347 else\r
1348 {\r
1349/* Push index and limit back to R */\r
1350 M_R_PUSH( NewIndex );\r
1351 M_R_PUSH( Limit );\r
1352/* Branch back to just after (DO) */\r
1353 M_BRANCH;\r
1354 }\r
1355 M_DROP;\r
1356 }\r
1357 endcase;\r
1358\r
1359 case ID_QDO_P: /* (?DO) ( limit start -- ) ( R: -- start limit ) */\r
1360 Scratch = M_POP; /* limit */\r
1361 if( Scratch == TOS )\r
1362 {\r
1363/* Branch to just after (LOOP) */\r
1364 M_BRANCH;\r
1365 }\r
1366 else\r
1367 {\r
1368 M_R_PUSH( TOS );\r
1369 M_R_PUSH( Scratch );\r
1370 InsPtr++; /* skip branch offset, enter loop */\r
1371 }\r
1372 M_DROP;\r
1373 endcase;\r
1374\r
1375 case ID_QDUP: if( TOS ) M_DUP; endcase;\r
1376\r
1377 case ID_QTERMINAL: /* WARNING: Typically not fully implemented! */\r
1378 PUSH_TOS;\r
1379 TOS = sdQueryTerminal();\r
1380 endcase;\r
1381 \r
1382 case ID_QUIT_P: /* Stop inner interpreter, go back to user. */\r
1383#ifdef PF_SUPPORT_TRACE\r
1384 Level = 0;\r
1385#endif\r
1386 M_THROW(THROW_QUIT);\r
1387 endcase;\r
1388 \r
1389 case ID_R_DROP:\r
1390 M_R_DROP;\r
1391 endcase;\r
1392\r
1393 case ID_R_FETCH:\r
1394 PUSH_TOS;\r
1395 TOS = (*(TORPTR));\r
1396 endcase;\r
1397 \r
1398 case ID_R_FROM:\r
1399 PUSH_TOS;\r
1400 TOS = M_R_POP;\r
1401 endcase;\r
1402 \r
1403 case ID_REFILL:\r
1404 PUSH_TOS;\r
1405 TOS = (ffRefill() > 0) ? FTRUE : FFALSE;\r
1406 endcase;\r
1407 \r
1408/* Resize memory allocated by ALLOCATE. */\r
1409 case ID_RESIZE: /* ( addr1 u -- addr2 result ) */\r
1410 {\r
1cb310e6 1411 cell_t *Addr1 = (cell_t *) M_POP;\r
07618dcb 1412 // Point to validator below users address.\r
1cb310e6 1413 cell_t *FreePtr = Addr1 - 1;\r
1414 if( ((ucell_t)*FreePtr) != ((ucell_t)FreePtr ^ PF_MEMORY_VALIDATOR))\r
bb6b2dcd 1415 {\r
07618dcb 1416 // 090218 - Fixed bug, was returning zero.\r
1417 M_PUSH( Addr1 );\r
bb6b2dcd 1418 TOS = -3;\r
1419 }\r
1420 else\r
1421 {\r
1422 /* Try to allocate. */\r
1cb310e6 1423 CellPtr = (cell_t *) pfAllocMem( TOS + sizeof(cell_t) );\r
bb6b2dcd 1424 if( CellPtr )\r
1425 {\r
1426 /* Copy memory including validation. */\r
1cb310e6 1427 pfCopyMemory( (char *) CellPtr, (char *) FreePtr, TOS + sizeof(cell_t) );\r
1428 *CellPtr = (cell_t)(((ucell_t)CellPtr) ^ (ucell_t)PF_MEMORY_VALIDATOR);\r
07618dcb 1429 // 090218 - Fixed bug that was incrementing the address twice. Thanks Reinhold Straub.\r
1430 // Increment past validator to user address.\r
1cb310e6 1431 M_PUSH( (cell_t) (CellPtr + 1) );\r
07618dcb 1432 TOS = 0; // Result code.\r
1433 // Mark old cell as dead so we can't free it twice.\r
bb6b2dcd 1434 FreePtr[0] = 0xDeadBeef;\r
1435 pfFreeMem((char *) FreePtr);\r
1436 }\r
1437 else\r
1438 {\r
07618dcb 1439 // 090218 - Fixed bug, was returning zero.\r
1440 M_PUSH( Addr1 );\r
bb6b2dcd 1441 TOS = -4; /* FIXME Fix error code. */\r
1442 }\r
1443 }\r
1444 }\r
1445 endcase;\r
1446 \r
1447/*\r
1448** RP@ and RP! are called secondaries so we must\r
1449** account for the return address pushed before calling.\r
1450*/\r
1451 case ID_RP_FETCH: /* ( -- rp , address of top of return stack ) */\r
1452 PUSH_TOS;\r
1cb310e6 1453 TOS = (cell_t)TORPTR; /* value before calling RP@ */\r
bb6b2dcd 1454 endcase;\r
1455 \r
1456 case ID_RP_STORE: /* ( rp -- , address of top of return stack ) */\r
1cb310e6 1457 TORPTR = (cell_t *) TOS;\r
bb6b2dcd 1458 M_DROP;\r
1459 endcase;\r
1460 \r
1461 case ID_ROLL: /* ( xu xu-1 xu-1 ... x0 u -- xu-1 xu-1 ... x0 xu ) */\r
1462 {\r
1cb310e6 1463 cell_t ri;\r
1464 cell_t *srcPtr, *dstPtr;\r
bb6b2dcd 1465 Scratch = M_STACK(TOS);\r
1466 srcPtr = &M_STACK(TOS-1);\r
1467 dstPtr = &M_STACK(TOS);\r
1468 for( ri=0; ri<TOS; ri++ )\r
1469 {\r
1470 *dstPtr-- = *srcPtr--;\r
1471 }\r
1472 TOS = Scratch;\r
1473 STKPTR++;\r
1474 }\r
1475 endcase;\r
1476\r
1477 case ID_ROT: /* ( a b c -- b c a ) */\r
1478 Scratch = M_POP; /* b */\r
1479 Temp = M_POP; /* a */\r
1480 M_PUSH( Scratch ); /* b */\r
1481 PUSH_TOS; /* c */\r
1482 TOS = Temp; /* a */\r
1483 endcase;\r
1484\r
1485/* Logical right shift */\r
1cb310e6 1486 case ID_RSHIFT: { TOS = ((ucell_t)M_POP) >> TOS; } endcase; \r
bb6b2dcd 1487 \r
1488#ifndef PF_NO_SHELL\r
1489 case ID_SAVE_FORTH_P: /* ( $name Entry NameSize CodeSize -- err ) */\r
1490 {\r
1cb310e6 1491 cell_t NameSize, CodeSize, EntryPoint;\r
bb6b2dcd 1492 CodeSize = TOS;\r
1493 NameSize = M_POP;\r
1494 EntryPoint = M_POP;\r
1495 ForthStringToC( gScratch, (char *) M_POP );\r
1496 TOS = ffSaveForth( gScratch, EntryPoint, NameSize, CodeSize );\r
1497 }\r
1498 endcase;\r
1499#endif\r
1500\r
1501/* Source Stack\r
1502** EVALUATE >IN SourceID=(-1) 1111\r
1503** keyboard >IN SourceID=(0) 2222\r
1504** file >IN lineNumber filePos SourceID=(fileID)\r
1505*/\r
1506 case ID_SAVE_INPUT: /* FIXME - finish */\r
1507 {\r
1508 }\r
1509 endcase;\r
1510\r
1511 case ID_SP_FETCH: /* ( -- sp , address of top of stack, sorta ) */\r
1512 PUSH_TOS;\r
1cb310e6 1513 TOS = (cell_t)STKPTR;\r
bb6b2dcd 1514 endcase;\r
1515 \r
1516 case ID_SP_STORE: /* ( sp -- , address of top of stack, sorta ) */\r
1cb310e6 1517 STKPTR = (cell_t *) TOS;\r
bb6b2dcd 1518 M_DROP;\r
1519 endcase;\r
1520 \r
1521 case ID_STORE: /* ( n addr -- , write n to addr ) */\r
1522#if (defined(PF_BIG_ENDIAN_DIC) || defined(PF_LITTLE_ENDIAN_DIC))\r
1523 if( IN_DICS( TOS ) )\r
1524 {\r
1cb310e6 1525 WRITE_CELL_DIC(TOS,M_POP);\r
bb6b2dcd 1526 }\r
1527 else\r
1528 {\r
1cb310e6 1529 *((cell_t *)TOS) = M_POP;\r
bb6b2dcd 1530 }\r
1531#else\r
1cb310e6 1532 *((cell_t *)TOS) = M_POP;\r
bb6b2dcd 1533#endif\r
1534 M_DROP;\r
1535 endcase;\r
1536\r
1537 case ID_SCAN: /* ( addr cnt char -- addr' cnt' ) */\r
1538 Scratch = M_POP; /* cnt */\r
1539 Temp = M_POP; /* addr */\r
1540 TOS = ffScan( (char *) Temp, Scratch, (char) TOS, &CharPtr );\r
1cb310e6 1541 M_PUSH((cell_t) CharPtr);\r
bb6b2dcd 1542 endcase;\r
1543 \r
1544#ifndef PF_NO_SHELL\r
1545 case ID_SEMICOLON:\r
1546 SAVE_REGISTERS;\r
1547 Scratch = ffSemiColon();\r
1548 LOAD_REGISTERS;\r
1549 if( Scratch ) M_THROW( Scratch );\r
1550 endcase;\r
1551#endif /* !PF_NO_SHELL */\r
1552 \r
1553 case ID_SKIP: /* ( addr cnt char -- addr' cnt' ) */\r
1554 Scratch = M_POP; /* cnt */\r
1555 Temp = M_POP; /* addr */\r
1556 TOS = ffSkip( (char *) Temp, Scratch, (char) TOS, &CharPtr );\r
1cb310e6 1557 M_PUSH((cell_t) CharPtr);\r
bb6b2dcd 1558 endcase;\r
1559\r
1560 case ID_SOURCE: /* ( -- c-addr num ) */\r
1561 PUSH_TOS;\r
1cb310e6 1562 M_PUSH( (cell_t) gCurrentTask->td_SourcePtr );\r
1563 TOS = (cell_t) gCurrentTask->td_SourceNum;\r
bb6b2dcd 1564 endcase;\r
1565 \r
1566 case ID_SOURCE_SET: /* ( c-addr num -- ) */\r
1567 gCurrentTask->td_SourcePtr = (char *) M_POP;\r
1568 gCurrentTask->td_SourceNum = TOS;\r
1569 M_DROP;\r
1570 endcase;\r
1571 \r
1572 case ID_SOURCE_ID:\r
1573 PUSH_TOS;\r
1574 TOS = ffConvertStreamToSourceID( gCurrentTask->td_InputStream ) ;\r
1575 endcase;\r
1576 \r
1577 case ID_SOURCE_ID_POP:\r
1578 PUSH_TOS;\r
1579 TOS = ffConvertStreamToSourceID( ffPopInputStream() ) ;\r
1580 endcase;\r
1581 \r
1582 case ID_SOURCE_ID_PUSH: /* ( source-id -- ) */\r
1cb310e6 1583 TOS = (cell_t)ffConvertSourceIDToStream( TOS );\r
bb6b2dcd 1584 Scratch = ffPushInputStream((FileStream *) TOS );\r
1585 if( Scratch )\r
1586 {\r
1587 M_THROW(Scratch);\r
1588 }\r
1589 else M_DROP;\r
1590 endcase;\r
1591 \r
1592 case ID_SWAP:\r
1593 Scratch = TOS;\r
1594 TOS = *STKPTR;\r
1595 *STKPTR = Scratch;\r
1596 endcase;\r
1597 \r
1598 case ID_TEST1:\r
1599 PUSH_TOS;\r
1600 M_PUSH( 0x11 );\r
1601 M_PUSH( 0x22 );\r
1602 TOS = 0x33;\r
1603 endcase;\r
1604\r
1605 case ID_TEST2:\r
1606 endcase;\r
1607\r
1608 case ID_THROW: /* ( k*x err -- k*x | i*x err , jump to where CATCH was called ) */\r
1609 if(TOS)\r
1610 {\r
1611 M_THROW(TOS);\r
1612 }\r
1613 else M_DROP;\r
1614 endcase;\r
1615\r
1616#ifndef PF_NO_SHELL\r
1617 case ID_TICK:\r
1618 PUSH_TOS;\r
1619 CharPtr = (char *) ffWord( (char) ' ' );\r
1620 TOS = ffFind( CharPtr, (ExecToken *) &Temp );\r
1621 if( TOS == 0 )\r
1622 {\r
1623 ERR("' could not find ");\r
1624 ioType( (char *) CharPtr+1, *CharPtr );\r
1625 M_THROW(-13);\r
1626 }\r
1627 else\r
1628 {\r
1629 TOS = Temp;\r
1630 }\r
1631 endcase;\r
1632#endif /* !PF_NO_SHELL */\r
1633 \r
1634 case ID_TIMES: BINARY_OP( * ); endcase;\r
1635 \r
1636 case ID_TYPE:\r
1637 Scratch = M_POP; /* addr */\r
1638 ioType( (char *) Scratch, TOS );\r
1639 M_DROP;\r
1640 endcase;\r
1641\r
1642 case ID_TO_R:\r
1643 M_R_PUSH( TOS );\r
1644 M_DROP;\r
1645 endcase;\r
1646\r
1647 case ID_VAR_BASE: DO_VAR(gVarBase); endcase;\r
1648 case ID_VAR_CODE_BASE: DO_VAR(gCurrentDictionary->dic_CodeBase); endcase;\r
1649 case ID_VAR_CODE_LIMIT: DO_VAR(gCurrentDictionary->dic_CodeLimit); endcase;\r
1650 case ID_VAR_CONTEXT: DO_VAR(gVarContext); endcase;\r
1651 case ID_VAR_DP: DO_VAR(gCurrentDictionary->dic_CodePtr.Cell); endcase;\r
1652 case ID_VAR_ECHO: DO_VAR(gVarEcho); endcase;\r
1653 case ID_VAR_HEADERS_BASE: DO_VAR(gCurrentDictionary->dic_HeaderBase); endcase;\r
1654 case ID_VAR_HEADERS_LIMIT: DO_VAR(gCurrentDictionary->dic_HeaderLimit); endcase;\r
1655 case ID_VAR_HEADERS_PTR: DO_VAR(gCurrentDictionary->dic_HeaderPtr.Cell); endcase;\r
1656 case ID_VAR_NUM_TIB: DO_VAR(gCurrentTask->td_SourceNum); endcase;\r
1657 case ID_VAR_OUT: DO_VAR(gCurrentTask->td_OUT); endcase;\r
1658 case ID_VAR_STATE: DO_VAR(gVarState); endcase;\r
1659 case ID_VAR_TO_IN: DO_VAR(gCurrentTask->td_IN); endcase;\r
1660 case ID_VAR_TRACE_FLAGS: DO_VAR(gVarTraceFlags); endcase;\r
1661 case ID_VAR_TRACE_LEVEL: DO_VAR(gVarTraceLevel); endcase;\r
1662 case ID_VAR_TRACE_STACK: DO_VAR(gVarTraceStack); endcase;\r
1663 case ID_VAR_RETURN_CODE: DO_VAR(gVarReturnCode); endcase;\r
1664\r
1665 case ID_WORD:\r
1cb310e6 1666 TOS = (cell_t) ffWord( (char) TOS );\r
bb6b2dcd 1667 endcase;\r
1668\r
1669 case ID_WORD_FETCH: /* ( waddr -- w ) */\r
1670#if (defined(PF_BIG_ENDIAN_DIC) || defined(PF_LITTLE_ENDIAN_DIC))\r
1671 if( IN_DICS( TOS ) )\r
1672 {\r
1cb310e6 1673 TOS = (uint16_t) READ_SHORT_DIC((uint8_t *)TOS);\r
bb6b2dcd 1674 }\r
1675 else\r
1676 {\r
1cb310e6 1677 TOS = *((uint16_t *)TOS);\r
bb6b2dcd 1678 }\r
1679#else\r
1cb310e6 1680 TOS = *((uint16_t *)TOS);\r
bb6b2dcd 1681#endif\r
1682 endcase;\r
1683\r
1684 case ID_WORD_STORE: /* ( w waddr -- ) */\r
1685 \r
1686#if (defined(PF_BIG_ENDIAN_DIC) || defined(PF_LITTLE_ENDIAN_DIC))\r
1687 if( IN_DICS( TOS ) )\r
1688 {\r
1cb310e6 1689 WRITE_SHORT_DIC(TOS,M_POP);\r
bb6b2dcd 1690 }\r
1691 else\r
1692 {\r
1cb310e6 1693 *((uint16_t *)TOS) = (uint16_t) M_POP;\r
bb6b2dcd 1694 }\r
1695#else\r
1cb310e6 1696 *((uint16_t *)TOS) = (uint16_t) M_POP;\r
bb6b2dcd 1697#endif\r
1698 M_DROP;\r
1699 endcase;\r
1700\r
1701 case ID_XOR: BINARY_OP( ^ ); endcase;\r
1702 \r
1703 \r
1704/* Branch is followed by an offset relative to address of offset. */\r
1705 case ID_ZERO_BRANCH:\r
1706DBUGX(("Before 0Branch: IP = 0x%x\n", InsPtr ));\r
1707 if( TOS == 0 )\r
1708 {\r
1709 M_BRANCH;\r
1710 }\r
1711 else\r
1712 {\r
1713 InsPtr++; /* skip over offset */\r
1714 }\r
1715 M_DROP;\r
1716DBUGX(("After 0Branch: IP = 0x%x\n", InsPtr ));\r
1717 endcase;\r
1718 \r
1719 default:\r
1720 ERR("pfCatch: Unrecognised token = 0x");\r
1721 ffDotHex(Token);\r
1722 ERR(" at 0x");\r
1cb310e6 1723 ffDotHex((cell_t) InsPtr);\r
bb6b2dcd 1724 EMIT_CR;\r
1725 InsPtr = 0;\r
1726 endcase;\r
1727 }\r
1728 \r
1cb310e6 1729 if(InsPtr) Token = READ_CELL_DIC(InsPtr++); /* Traverse to next token in secondary. */\r
bb6b2dcd 1730 \r
1731#ifdef PF_DEBUG\r
1732 M_DOTS;\r
1733#endif\r
1734\r
1735#if 0\r
1736 if( _CrtCheckMemory() == 0 )\r
1737 {\r
1738 ERR("_CrtCheckMemory abort: InsPtr = 0x");\r
1739 ffDotHex((int)InsPtr);\r
1740 ERR("\n");\r
1741 }\r
1742#endif\r
1743\r
1744 } while( (InitialReturnStack - TORPTR) > 0 );\r
1745\r
1746 SAVE_REGISTERS;\r
1747 \r
1748 return ExceptionReturnCode;\r
1749}\r
Fork of 'github/philburk/pforth', a portable ANS-like Forth written in ANSI C.